The advert shows TV presenter Myleene Klass playing the piano with her immaculate hair shimmering from root to tip. It is a display that convinced Sophie Peppercorn to try Pantene for the first time.
So she bought one of the shampoos which promised 'healthy looking hair in ten days' and could hardly wait to see the results.
But the 19-year- old administration assistant was left distraught the first time she used the shampoo when clumps of hair came out in the shower, leaving her with bald patches.
When Miss Peppercorn, from Peterborough, called the Pantene helpline to complain she was offered a £5 Pantene voucher in compensation.